Finding the Fourth Proportional to 10,519.38, 15,782.04 and 3,123.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,519.38 : 15,782.04 = 3,123.84 : x
2. Step 2: Convert to fraction form
   10,519.38/15,782.04 = 3,123.84/x
3. Step 3: Cross multiply
   10,519.38x = 15,782.04 × 3,123.84
4. Step 4: Simplify right side
   10,519.38x = 49,300,567.83
5. Step 5: Solve for x
   x = 49,300,567.83/10,519.38
6. Step 6: Final answer
   x = 4,686.64